button.btn {
        width: 42px;
        height: 42px;
        padding: 0px;        
}
h2{
	text-align: center;
	border: 2px solid black;
	border-radius: 25px;
	background-color: #b0c4de;
	
}

*, *:before, *:after{ 
    box-sizing: border-box; 
    -moz-box-sizing: border-box; 
    -webkit-box-sizing: border-box; 
} 
.css-shapes-preview{ 
    position: absolute; 
    height: 420px; 
    width: 240px; 
    padding: 0px; 
    left: 50%;
    margin-left: -100px;
    background-color: white; 
}